7-16. REPLACEMENT OF THREADED SCREW INSERTS. Continued
e. Prewinder (4)
f. Insert (5)
g. Tang breakoff
Loosen stop collar (6) with hex wrench.
If insert is used a cap-
Extend threaded shaft beyond end of
tive screw, set prewinder
prewinder one thread longer than insert.
with an extra 2 to 3 mm
Move stop collar to top of tool body and
Retract threaded shaft.
Place insert in prewinder (4) with tang
end toward prewinder tip. Rotate shaft
until insert projects beyond the tip one
full turn. Place tip in hole. Screw insert
into hole until stop collar touches the
tool body. Retract prewinder.
Place on tang. Break off tang by pressing
down on tool. Remove tang breakoff tool.
Remove broken tang from hole.
Figure 7-3. Threaded Screw Insert Replacement